Patents by Inventor Tao Han

Tao Han has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20110111201
    Abstract: The present invention relates generally to methods to produce various desired patterns (e.g., coils) via an electrospinning process where such desired patterns possess certain desired properties (e.g., desired electrical properties). In one embodiment, the present invention relates to a method for producing coiled fiber patterns at a rate of one turn of the coil in a set time period (e.g., about one microsecond). In another embodiment, the present invention relates to methods to produce “resonator structures” that are the basic element of artificial dielectrics. In still another embodiment, the present invention relates to methods to produce coils with various specified diameters (e.g., about 10 microns) which can, among other things, enable the production of repeating patterns in a wallpaper-like array. In still yet another embodiment, the present invention relates to methods to hierarchical structures that offer mechanical support for various nanofibers.
    Type: Application
    Filed: November 28, 2008
    Publication date: May 12, 2011
    Inventors: Darrell H. Reneker, Tao Han
  • Publication number: 20100215790
    Abstract: The present invention includes embodiments that generally relate to methods and devices for control of electrospinning processes. Some embodiments include constant current electrospinning jets. Other embodiments include pressure control using a system of valves in fluid communication with the electrospinning fluid. Still other embodiments include control of one or more physical parameters.
    Type: Application
    Filed: November 30, 2006
    Publication date: August 26, 2010
    Applicant: THE UNIVERSITY OF AKRON
    Inventors: Darrell H. Reneker, Tao Han
  • Publication number: 20100008994
    Abstract: The present invention relates to structures that contain one or more fiber and/or nanofiber structures where such structures can be formed on a wide variety of structures or surfaces (e.g., asperities, flat surfaces, angled surface, hierarchical structures, etc.). In one embodiment, the present invention relates to a process for forming one or more fibers, nanofibers or structures made therefrom on a wide variety of structures or surfaces (e.g., asperities, flat surfaces, angled surface, hierarchical structures, etc.). In another embodiment, the present invention relates to a process for forming one or more fibers, nanofibers or structures made therefrom on a wide variety of structures or surfaces (e.g., asperities, flat surfaces, angled surface, hierarchical structures, etc.) where such fibers and/or structures are designed to sequester, carry and/or encapsulate one or more substances.
    Type: Application
    Filed: May 9, 2007
    Publication date: January 14, 2010
    Applicant: THE UNIVERSITY OF AKRON
    Inventors: Darrell Reneker, Tao Han, Daniel Smith, Camden Ertley, Joseph W. Reneker
  • Publication number: 20080226589
    Abstract: Methods and compositions containing a phorbol ester or a derivative of a phorbol ester are provided for the treatment of cytopathic diseases. Cytopathic diseases may be caused by a variety means such as viral infections like HIV and AIDS, or the development of neoplasms in a mammalian subject. The methods and compositions of the invention are effective for inhibiting de novo HIV infections upregulating viral expression from latent provirus, inhibiting HIV-induced cytopathic effects, down regulating the HIV receptor, increasing Th1 cytokine expression, decreasing Th2 cytokine expression, increasing ERK phosphorylation, inducing apoptosis in malignant cells, inducing remission, maintaining remission, as chemotherapeutic agents, as well as for decreasing symptoms of cytopathic diseases and opportunistic infections that may accompany such diseases.
    Type: Application
    Filed: January 31, 2008
    Publication date: September 18, 2008
    Inventor: Zheng Tao Han
  • Publication number: 20080138981
    Abstract: System and method for manufacturing contact. According to an embodiment, the present invention provides a method for manufacturing integrated circuits. The method includes a step for providing a semiconductor substrate. The method also includes a step for defining a plurality of contact regions on the semiconductor substrate. The method further includes a step for forming a plurality of dielectric structures on the plurality of contact regions. Additionally, the method includes a step for forming a plurality of openings on the semiconductor substrate. For example, each of the openings is characterized by at least a depth, a width, and an aspect ratio. Furthermore, the method includes a step for performing deposition within the openings using a first type of material, which includes a titanium material. The method additionally includes a step for performing annealing at a predetermined set of conditions.
    Type: Application
    Filed: December 4, 2007
    Publication date: June 12, 2008
    Applicant: Semiconductor Manufacturing International (Shanghai) Corporation
    Inventors: Tao Han, Jianguo Fan
  • Publication number: 20040092695
    Abstract: The present application provides a biodegradable polyurethane elastomer comprising soft segments A and B, and hard segment C, wherein: the segment A is formed from poly(&bgr;-hydroxybutyrate) diol and optional one or more components selected from the group consisting of poly(lactic acid)diol, polyglycolide diol, polylactide diol, polycaprolactone(PCL) diol and poly(lactic/glycolic acid) diol; the segment B is formed from polyethylene glycol; the segment C is formed from one or more diisocyanate selected from the group consisting of 1,6-hexamthylene diisocyanate, isophorone diisocyanate and lysine diisocyanate; and the molar ratio of these segments are: (A+B)/C=0.8 to 1.2; A/B=0.1 to 10; and the amount of the poly-&bgr;-hydroxybutyrate units in the segment A is 10-100 mol %.
    Type: Application
    Filed: August 20, 2003
    Publication date: May 13, 2004
    Applicant: TSINGHUA UNIVERSITY
    Inventors: Ping Hu, Tao Han
  • Publication number: 20020093658
    Abstract: A photoacoustic spectrometer cell includes a specimen chamber having a specimen port, an optical window in optical communication with the chamber, a microphone in acoustic communication with the chamber, and a push-on closure for closing the port. At least one of the closure and the port have a groove adapted to relieve pressure in the chamber during closing.
    Type: Application
    Filed: November 29, 2001
    Publication date: July 18, 2002
    Inventor: Tao Han
  • Patent number: 6063814
    Abstract: Phorbol esters and particularly phorbol-12-myristate-13-acetate (TPA) are described as effective in treating patients with neoplastic diseases such as leukemia as well as in increasing the white blood cell count.
    Type: Grant
    Filed: April 14, 1997
    Date of Patent: May 16, 2000
    Inventors: Richard L. Chang, Zheng Tao Han